$(document).ready(function () {
  $('#myPicker').timepicker (
  {
    'step': '60',
  	'minTime': '10:00am',
  	'maxTime': '8:00pm',
  	'timeFormat': 'h:i:s a',
  });	
  $('#myTimepicker').on('changeTime', function() {
    $('#mySpan').text($(this).val());
  });		
});